In the airline world, pilots seldom have to really land in the "dark". With all the approach and runway lights, normal (but dimmed) cockpit lighting works just fine, especially with the previously-mentioned multicolor displays.
OTOH, the pilot of a GA airplane with minimal instrumentation that is landing on a minimally-lit airfield will need night adaptation to safely land. The red cockpit lighting will be an advantage there.
When the Navy started using night vision goggles in the late 80s and early 90s, there was a LOT of RDT&E to get the right combination of color and intensity of [green] lighting to replace the old red lights - which were incompatible with NVGs - and retain safety for night carrier ops.